L-Theanine de werking, dosering, ervaringen en voordelen.

L-Theanine the effect, dosage, experiences and benefits.

L-Theanine the effect, dosage, experiences and benefits.

by Max van Engelen

How L-Theanine works: a real brain supplement.

Quick question: which nootropic is already helping many people with their brain health without them even knowing it?

L-theanine! L-theanine is found in green and black tea that many people drink every day.

Because of its influence on concentration, stress, brain health, cognitive functions and sleep, this extraordinary amino acid has been extensively researched by scientists.

So you can use l-theanine to improve your brain health. In this blog, we take a closer look at the effects of l-theanine, what researchers have to say about it and how it can benefit your health.

But what exactly is l-theanine?

L-theanine is a naturally occurring amino acid first found in green tea by Japanese scientists in 1949. While you may think of amino acids as the building blocks of the body, l-theanine is anything but a simple building block for your body.

As I indicated earlier, l-theanine can of course be obtained from green and black tea, but did you know that some mushrooms also contain l-theanine.

L-theanine can affect some hormones in your brain. These hormones are dopamine and serotonin, which in turn affect your sleep, emotions, cortisol (stress hormone) and mood.


What is the effect of l-theanine?

When you ingest l-theanine from tea, as a separate supplement or, for example, a nootropic stack, it is absorbed into your bloodstream and eventually reaches your brain.

Several completed and current studies show that l-theanine can have the following effects on your body:

  • Increased dopamine and serotonin levels
  • Function as an antioxidant
  • Protection of your brain

That may sound interesting, but what exactly do these effects do to your body you may ask?

Don't worry, we're now going to talk about why you want l-theanine in your life!

5 experiences and benefits of l-theanine

1. It helps with concentration and mental clarity.

Research shows that l-theanine is the secret ingredient in tea that causes caffeine to behave differently than when you take caffeine from coffee. In other words, l-theanine has a direct effect on the effects of caffeine.

For example, one study found that because l-theanine is relaxing and caffeine is stimulant, they partially offset each other's effects. On the other hand, caffeine and l-theanine can be combined to improve cognitive performance more effectively than caffeine alone, especially in large doses. Taking l-theanine along with caffeine gives you the peace and tranquility of l-theanine and the energy and alertness of caffeine. I'd love to tell you more about l-theanine and caffeine in another blog.

In addition, an electroencephalogram study shows that 50-200 mg l-theanine, alone or in combination with coffee, promotes alpha brain wave activity. Alpha brain waves are generally produced during a state of relaxation. Your brain doesn't need to focus intensely on anything while producing alpha waves. For example, these states are associated with less stress, less anxiety and better concentration.


2. Ensures good stress resistance

Numerous studies indicate that taking l-theanine regularly supports a healthy response to stressful events. L-theanine promotes calmness and helps control healthy blood pressure in people who typically react poorly to stress. In another study, 200 milligrams of l-theanine seemed to promote calm both during and after difficult tasks. The effects were especially greatest on people who were already more sensitive to stress.

These results could apply to most people, not just those under high stress, as other research has found similar results in populations such as healthy adults and college students.

3. Supports brain health

Unlike most supplements, l-theanine breaks through the blood-brain barrier. This can lead to multiple health benefits for your brain. These are some of the effects you can expect as a result:

  • Neurogenesis (making and repairing neurons)
  • Nitric oxide levels rise, which protects neurons and stabilizes neurotransmitter levels
  • Anti neurotoxic effects

In addition to the benefits such as peace of mind and less stress, it can also have health benefits for your brain.

4. Calmness without fatigue

Many supplements that are good for stress and anxiety have the side effect that they can make you tired. L-theanine gives you peace of mind without making you tired. This is one of my personal best benefits of l-theanine. L-theanine can therefore be used throughout the day. For example, before exercising in combination with caffeine or a pre-workout. This way you have peace in your head along with mental energy. Or, for example, think of a long meeting. You want to be attentive but of course not in poop.

Phillip Ackerman

5. Improved sleep

The last benefit of this blog goes a bit counter to point 4. L-theanine in itself does not make your body tired, but it does give you more peace of mind. If you try to sleep with an empty head without stress, it will be easier.

L-theanine can therefore also be used as a sleep aid. The Journal of the American College of Nutrition has done several studies on this. A Japanese study showed that men's sleep quality was improved by consuming 200 mg of L-theanine an hour before bed.

L-theanine side effects

The use of L-theanine is usually considered safe. It has not been associated with serious negative consequences. To clarify what this description means, let's examine the word "negative" more closely.

Side effects are defined as 'harmful'. There will be a note if a drug or dietary supplement "causes harm". A "serious adverse reaction" is further described as anything that carries a risk of death, could lead to death, or cause long-term or severe disability. Think of liver failure, life-threatening allergic reactions and irregular heartbeats. Fortunately, l-theanine has no serious side effects.

L-theanine buy and dosage

A normal dose of l-theanine varies between 50 to 200 milligrams. For example, a normal glass of green tea contains 25 milligrams, but drinking 8 glasses of tea to get to 200 milligrams is quite a lot. Fortunately, you can now also easily get l-theanine in supplement form. There are several brands that sell it as a powder, capsule or in a stack. Shop our GABA & L-theanine or Neuro Nootropics supplements now to find out for yourself the many benefits of l-theanine.


L-theanine is a strong nootropic that tops the list of many nootropic users. All with very good reasoning. The benefits of l-theanine are well substantiated by many studies and the result is very noticeable. L-theanine can therefore have a good effect on your cognitive functions without unpleasant side effects.

Are you still looking for a safe, proven supplement against stress and unrest in your head? Then l-theanine can be the solution. Want all these benefits plus even more cognitive boosters? Then our supplements GABA & L-theanine. and Neuro Nootropics are the perfect solution for you.

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